BharatNotes Ballistic
adjectiveUsage in a UPSC answer
India's induction of submarine-launched ballistic missiles has fundamentally recalibrated the subcontinent's deterrence calculus, furnishing a credible second-strike capability that underpins its declared no-first-use doctrine.
Synonyms
Antonyms
Word Family
ballistic (adj), ballistics (n), ballistician (n), ballistically (adv), antiballistic (adj)
Root
Greek ballein (to throw) → Latin ballista (siege engine for throwing) + -ic; missile sense from 1949.
Etymology
From Latin ballista ("a military siege engine for throwing stones") + -ic, ultimately from Greek ballein ("to throw"); first used in English in the mid-18th century, with the missile-related sense emerging in 1949.
Memory Hook
Think of a BALL thrown hard — the Greek root "ballein" means "to throw"; a ballistic object follows the arc of a hurled ball, and an angry person "thrown" into a rage "goes ballistic".
How This Word Works in UPSC Writing
Following an unpowered trajectory after an initial boost. The flight divides into three phases and they matter because each poses a distinct interception problem: the boost phase, brief and with a hot exhaust that is easy to detect but which occurs over the launching state's own territory; the midcourse phase, long and outside the atmosphere, where the warhead coasts and decoys travel identically to it because there is no air to strip them away; and the terminal phase, very short and very fast. Range classes run from short through medium and intermediate to intercontinental. The capability that has changed the calculus is MIRV, multiple independently targetable re-entry vehicles, which allows one missile to strike several separate targets and complicates defence by multiplying the objects requiring interception. India first flight-tested it on Agni-5 under Mission Divyastra on 11 March 2024, with a further MIRV-equipped test in May 2026. Submarine-launched missiles matter for a different reason, since survivability rather than accuracy is what makes a no-first-use posture credible.
Don’t Confuse It With
A ballistic missile is powered only during its initial boost and thereafter follows a path set by gravity and momentum, whereas a cruise missile is powered throughout and flies within the atmosphere. MIRV places several independently targetable warheads on one missile, which is not the same as merely carrying multiple warheads to a single target. The boost, midcourse and terminal phases each present different interception problems. A re-entry vehicle is the part that survives return through the atmosphere, and decoys accompany it precisely because discrimination in midcourse is so difficult.
Hindi Meaning
प्रक्षेपास्त्र (prakshepāstra) for missile; बैलिस्टिक retained as it stands.
Common Questions
- What are the three phases of ballistic missile flight?
- Boost, when the motors burn and the missile is easiest to detect; midcourse, a long coast outside the atmosphere where decoys travel with the warhead; and the very brief terminal phase.
- What is MIRV and why does it matter?
- Multiple Independently Targetable Re-entry Vehicles allow one missile to strike several separate targets, multiplying the objects a defence must intercept; India first tested it on Agni-5 in March 2024.
Seen in UPSC Question Papers
- Prelims 2023 — Defence Technology
- Prelims 2023 — Defence Technology
- Prelims 2021 — Defence Technology
- Prelims 2018 — Defence Technology
- Prelims 2017 — Defence Technology
Real UPSC previous-year questions whose text uses “Ballistic” — proof this word earns its place on your list.
Tip: press Alt+S to hear pronunciation
